Potato spindle tuber viroid(PSTVD0)
Photos
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Effect of increasing generation of infection on severity of tuber symptoms. Healthy tubers (top row), current season infection (2nd row) tubers 3rd generation infected tubers (3rd row) cvs. Norgold Russet and Russet Burbank.
Courtesy: SA Slack.
Reduced size and yield of potato tubers (healthy tubers on right).
PSTVd on potato; top to bottom: cv. Saco healthy, Saco infected, cv. Kennebec healthy, Kennebec infected.
Courtesy: USDA (US).
Typical aerial symptoms of PSTVd on potato cv. Kennebec (in centre); healthy plants (left and right).
Courtesy: R.P. Singh (CA).
Symptoms in pot-grown tomato plant.
Courtesy: Central Science Laboratory, York (GB) - British Crown.
Spindle tubers top, healthy bottom.
Courtesy: J Bryan.
Dwarfed plant with upright growth and rugose leaves cv. Norgold Russet. 3rd generation infection.
Courtesy: SA Slack.
Symptomless infection cv La Chipper. 3rd generation infection.
Courtesy: SA Slack.
Spindle tubers with deep eyes cv. Russet Burbank (far right healthy).
Courtesy: SA Slack.
Effect of increasing generation of infection on severity of tuber symptoms. Healthy tubers (top row), current season infection (2nd row) tubers 3rd generation infected tubers (3rd row) cvs. Norgold Russet and Russet Burbank.
Courtesy: SA Slack.
Symptoms of PSTVd.
Courtesy: Biologische Bundesanstalt, Braunschweig (DE).
Potato spindle tuber viroid (PSTVd): healthy and diseased tubers, cv. Nicola.
Courtesy: Plant Protection Service, Wageningen (NL).
Symptoms of PSTVd on potatoes
Courtesy: NPPO of the Netherlands
Symptoms of PSTVd on potatoes
Courtesy: NPPO of the Netherlands
Symptoms on inoculated Solanum lycopersicum
Courtesy: NPPO of the Netherlands
Symptoms on inoculated Solanum lycopersicum
Courtesy: NPPO of the Netherlands
Symptoms on inoculated Solanum lycopersicum
Courtesy: NPPO of the Netherlands
Symptoms on inoculated Solanum lycopersicum
Courtesy: NPPO of the Netherlands